| Location: | Pennington County, South Dakota, United States, North America |
| Lat / long: | 43.86524, -103.56 |
| dep_id: | 10010782 |
| mrds_id: | D004751 |
| Commodity type: | nonmetallic |
| Major mineral: | Mica, Feldspar |
| Operation type: | Unknown |
| Production size: | Small ammount of material produced |
| Development status: | Past Producer |
| ore: | Muscovite, Plagioclase |
| gangue: | Quartz |
| orebody_fm: | DIKE |
| alteration: | Mica Is Air Stained And Clouded By Inclusions |
| Reporter: | Barari, Rachel A. |
| hrock_type: | Granite |
| arock_unit: | Harney Peak Granite;Pegmatite |
| arock_type: | Pegmatite |
| References: |
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